Cut your Angel Food Cake into cubes.
In a small bowl combine pudding mix and milk, whisk until smooth and thickened.
In a large bowl, beat the cream cheese until smooth. Gradually add the powdered sugar and beat until smooth. Add Cool Whip to the bowl and mix until combined.
To assemble the trifle: alternate layers of angel food cake, blueberries, pudding mixture, strawberries and repeat.